ASoC: dapm - Add DAPM stream completion event.
In preparation for Dynamic PCM (AKA DSP) support.
This adds a callback function to be called at the completion of a DAPM stream
event.
This can be used by DSP components to perform calculations based on DAPM graphs
after completion of stream events.
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index e0583b7..350b1b3 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -524,6 +524,8 @@
enum snd_soc_bias_level target_bias_level;
struct list_head list;
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_dapm;
#endif
diff --git a/include/sound/soc.h b/include/sound/soc.h
index aa19f5a..64a9dd5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -634,6 +634,9 @@
void (*seq_notifier)(struct snd_soc_dapm_context *,
enum snd_soc_dapm_type, int);
+ /* codec stream completion event */
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
/* probe ordering - for components with runtime dependencies */
int probe_order;
int remove_order;
@@ -669,6 +672,9 @@
/* platform stream ops */
struct snd_pcm_ops *ops;
+ /* platform stream completion event */
+ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
+
/* probe ordering - for components with runtime dependencies */
int probe_order;
int remove_order;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 83ad8ca..9d3935b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3141,6 +3141,7 @@
platform->driver = platform_drv;
platform->dapm.dev = dev;
platform->dapm.platform = platform;
+ platform->dapm.stream_event = platform_drv->stream_event;
mutex_lock(&client_mutex);
list_add(&platform->list, &platform_list);
@@ -3253,6 +3254,7 @@
codec->dapm.dev = dev;
codec->dapm.codec = codec;
codec->dapm.seq_notifier = codec_drv->seq_notifier;
+ codec->dapm.stream_event = codec_drv->stream_event;
codec->dev = dev;
codec->driver = codec_drv;
codec->num_dai = num_dai;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 7e15914..612a2a2 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2604,6 +2604,10 @@
}
dapm_power_widgets(dapm, event);
+
+ /* do we need to notify any clients that DAPM stream is complete */
+ if (dapm->stream_event)
+ dapm->stream_event(dapm, event);
}
/**